Dogless-dial attachment for knitting-machines



W. H. SWARZ.

DOGLESS DlAL ATTACHMENT FOR KNITTING MACHINES.

, I APPLlCATON. FILED JUNE 28,1919- l 1,364,218, Patented Jan. 4,1921.

2 SHEETS--SHEET l mmf.

W. H, SWARTZ.

, DOGLESS DIAL ATTACHMENT FOR ANHTING MAcHlNEs.

APILICATlON FILED IUNE 2S, 994

Patented Jan. 4, 1921.

l. el. .aan i` OFFIE.

VJILLIAM El. SWARTZ, OF YGRK, PENNSYLVANIA.

DOGLESS-DAL ATTACHMENT FOR KNITTING-FTACHINES.

To all whom it may concern,

Be it known that l, l/VILLIAM H. SwAR'rZ, a citizen of the United States, residing at York, in the county of `York and State of Pennsylvania, have invented certain new` and useful Improvements in Dogless-Dial Attachments for Knitting-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

rllhis invention relates to a dogless dial attachment for knitting machines, and the object of the invention is to hold the dial stem stationary while other elements of the machine revolve around said stem, and at the same time allow the yarn to be carried in a revolving direction without any interference by any part that may be necessary to hold the stem stationary.

With this and other objects in view, my invention comprises. certain novel constructions, combinations, and arrangements of parts as will be hereinafter specifically described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

In the drawings,

Figure l is a plan view of my apparatus showing the cover plate removed, while Fig. 2 is a section taken on line 2--2, Fig. 1, looking in the direction of the arrows, the cover plate being on the casing.

F ig.. 3 is a section taken on line 3--3, Fig. 2, looking in the direction of the arrows.

Fig. 11 is a perspective view of one of the cams.

Fig. 5 is a sectional view taken on line 5-5, Fig. 2.

Fig. 6 is a section taken on line 6-6, Fi 2.

F ig. 7 is a fragmentary, perspective view of a portion of the casing showing the camsupporting lug.

Fig. 8 is a sectional view taken on line sa Fig. 1.

My invention, herein specifically described, is known to those skilled in the art of knitting by machinery as a dogless dial holder, and while all of the other parts of a knitting machine, such as more comprehensively disclosed in United States patent to G. L. Ballard, No. 1,012,966, issued December 26, 1911, l have not shown inV the accompanying drawings, since I make no claims for the general elements of a knitting machine, all reference by name to such Specification of Letters Patent.

.Patented Jan. 4, 1921.

1919. serial no. sof/,403.

missing parts will be readily understood by the trade in general.

Referring to the drawings by numerals, the purpose of my invention as clearly indicated in the foregoing statement of the object of the invention, is to hold the dial stem 1 stationary, while the other elements hereinafter described revolve around said stem 1, and at the same time allow the yarn, passing down through the tubes hereinafter specifically described, to be carried in a revolving direction without any interference by any part that may be necessary to hold stem 1 stationary.

The stationary, ring-like casing v2 is attached through the medium of fastening means 8 to preferably two braces 4, which braces extend downwardly, as usual with such braces in knitting machines (see Ballard patent above referred to), and are secured to some stationary part of the machine; these braces 4L vconstitute a support for the casing 2, Fig. 1.

The flat ring 5 is fastened by means of screws 6 to the lower edge of casing 2, and a flat ring 7 is fastened by screws. S to the hub 9. rlhe bottom disk 10 is mounted upon rings 5 and 7, being positioned within the casing 2 and bearing against an inwardlyextending, horizontal, integral, annular rib 11 (Fig. 2).

rlhe post 12 is attached to a rotatable part of a knitting machine, and cap 13 also revolves upon stem 1. A collar 14 is mounted upon post 12 and is retained in a set position thereon by means of set screws 15. The collar 14.- is provided with an enlarged extension or lug 16 which is internally threaded as indicated by dotted lines 17 (Fig. 1) and threaded into this lug 16 is lod 18, which rod 18 is provided with a lock nut 19 for securing the rod in an adjusted position upon the lug and collar. The inner end of the rod 18 is extended through the screw 20, and a cotter pin 21 is extended through the inner end of the rod holding the rod upon the screw 20. A. yoke arm 22 has its inner yoke end 23 straddling (Fig. 3) stem 1 and its outer end is held by screw 24: upon the top of post 12, The yoke arm 22 is bent upwardly intermediate its ends, and in the highest portion 22d is formed an elongated slot 25, in which slot 25 works the lower end of screw 26, this screw 26 being threaded through the bottom disk 10 whereby, when post 12 and cap 13 are rotated, bottom disk, 10 will be simultaneously.

Extending from the inner face of the botalso rotated Ytom disk 10 are integral, internally-thread zontal projections 30, each being provided with a threaded socket 31, into which socket is threaded a tapering pin 32; these pins 32 are in alinernent with lthe rollers 29 on tubes 28; the rollers 29, however, pass these pins withoutstriking the same. A set screw 33 fastens thehub 9 upon the stem l, and aux' iliary screws 34: center or retain the hub in an adjusted position to a nicety upon the stem, at the will of the operator.

Formed at regular intervals around the `face of casing 2 are integral, cam-supporting lugs 35, each lug being provided with an aperture 36, whereby suitable fastening means, as indicated at 37, may be inserted through pivoted cams 38 and lugs 35, pivot ally mounting the cams 38 upon the top oi the lugs. Each cam 38 is elongated and upon its inner edge or ltace and near its outer end is formed a pin-receiving socket 39 that is provided to receive the outer end of pin 32 (see Fig. 2). On the top of each lug 35 is a pin 40, and around said pin ex tends an angular spring Ll1; one end of the spring 4:1 bears against the cam 38 near its t outer end,.and the other' end of the spring bears against the casing 2, whereby the cam (all oi the cams being similarly equipped and operating in the same manner) is normally held in engagement with a pin 32, causing the outer end oi' the pin t0 be seated in socket 39 (Fig. 2), locking the hub 9 against rotation, as the hub, through the medium of the pins and cams, will be held in a fixed, stationary position with respect to the stationary casing 2. However, as the bottoni dish revolves, being driven by post 12, the tubes 28 will move around the hub, causing the rollers 29 to engage the inner curved faces of cams 38, successively forcing the cams outwardly, against the action of the springs, permitting the tubes to pass the outer ends of the pins, and as soon as the tubes have passed the particular cam, the spring will` force the outer end of the cam inwardly, causing the cam to be seated again upon the pin, and while, inthe present embodiment Vof my inventioml have shown two cams being heldfrom engagement with their respective pins, there are several cams locked upon the pins at all times, consequently holding the hub 9 and stem 1 rigidly against rotary movement by reason of Vsaid hub and stem being locked upon the casing 2.

i cap or cover disk i2 is provided Vfor covering `the interior parts of thecasing and keeping 'out dust orioreign objects. lt is to be noted that hub 9 is provided with a tapering bore, whereby the upper end 9a oi the bore is wider than the lower end, allowing the adjusting' action of screws 34 vso that the adjustment may be secured to a nicety. Y Y

lt will be understood that any Vnumberfoic pins and cams may be employed in the manufacture of apparatus constructed in accordance with the present invention, and sincerminor alterations or changes may appear to one skilled in the art to which this invention relates, in the construction ot this apparatus, l wish it to be understood that l reserve the right to make alterations or changes or Vmodilications as shall fairly fall within the scope of the appendedclaims.

`lll/*hat l claim is: n

1. ln a knitting machine of the class described, the combination with a, support oi a stationary casing attached to said support, a dial stem within said casing, a hub within saidcasing, yarn-directing means carried by the casing andthe hub, means for rotating said yarn-directing means, and .means carried by the casing and the hub and permitting the yarn-directing means to pass therebetween, but holding the easing, hub, and stem against rotary movement.

2. ln a knitting machine, the combination with a rotatable post, a support, of a stationary casing carried by said support, a stem within said casing, yarn-directing means carried by said casing and said stem, a yoke arm provided with an upwardlyextending, central portion and being connected at its outer end to said rotatablepost, said arm provided with an inner yoke end straddling said stem, said upwardly-extending, central portion of the arm being provided with an elongated aperture, means extending from said yarn-directing means into said elongated aperture whereby, when the post is rotated, the yarndirecting means will also be rotated, and means locking said casing and ystem together.

3. In a knitting machine, the combination with arotatable post, a support, of a casing carried by said support, a stem within said casing, yarn-directing means carried by said stern and casing and being provided with a screw extending downwardly therefrom, a yoke arm provided with an elongated aperture intermediate its ends, fastened at its outer end to the post and slidablyjengaging at its innerrend the stem, said screwhaving its lower depending end extending through the elongated aperture of the arm, and means locking the casing and the stem together. A

4. In a knitting machine, the combination with a support, of a stationary casing retained by said support, a stem within said casing, a hub upon said stem, pins entending from said hub, pivoted .cams carried by said casing and adapted to engage said pins for locking the casing, hub, and tern together, and yarn-directing means carried by said casing and hub, and being adapted to pass between the pins and cams.

5. ln a knitting machine, the combination with a support, of a stationary casing carried by said support, a dial stem within said casing, pins supported. upon said stem, movable cam means supported upon said casing and being adapted to engage said pins for locking the casing and stem together, and yarnedirecting means supported upon the casing and stem and being adapted to pass between the pins and cam means during its travel.

6. ln a knitting' machine, the combination with a support, of a casing carried by said support, said casing provided with an annular rib, a ring secured to the lower end pf said casing, a dial stem within said casing, a hub on said stem, a ring secured to the hub, a bottom disk positioned between the rib of the casing and the ring secured to its lower end and resting upon the ring attached to the hub, tubes carried by said bottom disk, means for rotating said bottom disk, and means for locking said casing and the hub and stem together.

7. In a knitting machine, the combination with a support, of a casing carried by said support, a stem within said casing, a hub on said stem, a bottom disk providedwith internally-threaded lugs upon its inner face, yarn tubes threaded into said lugs and extending through and beyond the upper and lower faces of said bottom disk, rollers on said tubesl above said lugs, means for rotating said bottom disk and said tubes, and means formed upon said casing and hub locking said casing, hub, and stem together, but engaging said rollers of the tubes and allow ing the tubes to pass therebetween.

S. ln a knitting machine, the combination with a support, of a stationary casing carried by said support, a dial stem within said casing, a hub mounted upon said stem, said hub provided with a plurality of horizontal, integral projections, each projection provided with a threaded socket, a pin threaded into said socket, said casing provided with cam-supporting lugs contiguous to said projections of the hub, cams pivotally mounted upon said cam-supporting lugs, each cam having a socket for receiving the outer end of a pin, means for forcing the cams into engagement with said pins, and yarn-directing means carried by the casing and hub and being adapted to engage the cams and press the same away from the pins and pass between said cams and pins.

9. ln a knitting machine, the combination with a support, of a. stationary casing carried by said support, a stem within said casing, a hub carried by said stem, said hub provided with threaded sockets, pins threaded into said sockets, pivotally-mounted cams carried by said stationary casing, said cams provided with means for engaging said pins, and yarn-directing means rotatably mounted upon the casing and hub and being adapt ed to pass between the cams and the pins.

l0. in knitting machine, the combination with a support, of a stationary casing carried by said support, a. dial stem within said casing and extending above and below the casing, a hub upon the stem and extending above and below the casing, yarn-directing means inovably mounted upon the casing and the hub, and means permitting` the yarn directing means to pass therebetween and locking said hub, stem, and casing together.

ll. In a knitting machine, the combination with a support, of stationary casing carried by said support, a dial stem within said casing, hub upon said stem, a pin carried by said hub, a curved cam pivotally mounted upon said casing and adapted to engage and be locked upon said pin, a disk rotatably mounted upon said casing and hub, yarndirecting tubes carried by said disk, rollers on said tubes, said rollers adapted to engage said cam and press the same away from said pin for permitting the passage of said rollers and tubes between the cam and pin, and means for rotating said disk.

l2. ln a knitting machine of the class described, the combination with a support, of a stationary casing carried by said support, said casing provided with a plurality of integral, cam-supporting lugs upon its inner face, a dial stem within said casing, a hub mounted upon said stem, said hub provided with a plurality of threaded, socketed projections within said casing, tapering pins threaded into said socketed projections, cams pivotaliy mounted upon said lugs of the casing and having curved inner faces and sockets near their outer ends, the pins normally resting at their outer ends in said sockets of the cams, springs interposed between said casing and cams and normally holding the cams in a locked position upon the pins, and yarn-directing means carried by the casing and hub and successively adapted to engage the cams, forcing the same against the action of the springs away from the pins and permitting the yarn` directing means to pass between the pins and the cams.

13. In a knitting machine, the combination with a support, of a stationary casing carried by said support, a dial stem within said casing, a hub on said stem, pin and cam means supported upon the hub and upon the casing and cooperating for looking the easing, hub, and stem'together, and yarn-directing means carriedby the casing and hub and adapted to successively act upon the cam means for moving the same with respect to the pin means 'for permitting the yarndirecting means to travel within the casing around the hub.

14. ln a knitting machine, the combination of a support, of a stationary casing carried byV said support7 cam-supporting lugs formed upon said casing, cams pivotally mounted at one end upon said lugs, each cam provided with a socket near its outer end, pinsupon said lugs, an angular spring extendingaround each pin and interposed between each Cam and casing, a dialstem within said casing, a hub on said dial stem, hori zontal projections extending from said hub, horizontal pins mounted upon said projections and adapted to engage at their outer ends the sockets on the cams, and yarndirecting means rotatably mounted upon the casing and hub, and adapted to engage the inner faces ot the cams for forcing' the same to an unlocked position with respeet'to the pins, andr permitting the yarn-directing means to pass between the cams and the pins, substantially as shown and described.

l5. In knitting machine, the combination with a support, of a casing carried by said supper@ a hub provided `With a tapering bore, a dial stem Within said hub, means at one end of said hub for locking the same upon said dial stemmeans at the opposite end oi'i said hub for centering the hub upon the stem, locking` means carried by the easingl and the hub for looking the sternv hub7 and casing together, yarn-directing means rota tably mounted upon the casing and hub and being adapted to pass between the locking` means,y and means for rotating Vthe yarndirecting means.

In testimony whereof l hereunto aiix my signature.

WILLIAM H. SWARTZ. 

